This seems cool to me although I do not know what it means. http://www.youtube.com/watch?feature=player_embedded&v=DfPeprQ7oGc This article explains it. http://www.highexistence.com/this-will-mindfuck-you-the-double-slit-experiment/ Yet I am still confused. Any scientific minded persons like to explain? Eg. why it is important? What it could mean? What could we do if we knew why?